Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)

The objective of this study was to investigate the applicability of Bolton’s ratios in orthodontic population of Malaysian main ethnics; Malay, Chinese and Indians. Ninety convenient samples consisting of 30 pre-orthodontic study casts from each ethnic that fits the inclusion criteria were selected....

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Main Authors:	Aida Nur Ashikin Abd. Rahman, Siti Adibah Othman
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2012
Online Access:	http://journalarticle.ukm.my/3301/ http://journalarticle.ukm.my/3301/1/17%2520Aida%2520Nur%2520Ashikin.pdf

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author	Aida Nur Ashikin Abd. Rahman, Siti Adibah Othman,
author_facet	Aida Nur Ashikin Abd. Rahman, Siti Adibah Othman,
author_sort	Aida Nur Ashikin Abd. Rahman,
building	UKM Institutional Repository
collection	Online Access
description	The objective of this study was to investigate the applicability of Bolton’s ratios in orthodontic population of Malaysian main ethnics; Malay, Chinese and Indians. Ninety convenient samples consisting of 30 pre-orthodontic study casts from each ethnic that fits the inclusion criteria were selected. The greatest mesiodistal widths of each tooth from six to six for overall ratio and three to three for anterior ratio were measured using a digital callipers linked to Hamilton Arch Tooth System software to the nearest 0.01mm. Means of the ratios were calculated using Bolton analysis. One sample t-test statistic analysis was carried out to compare the means with Bolton values of anterior ratio and overall ratio and one-way ANOVA was used to analyze comparison between ethnic groups of the anterior ratio and the overall ratio with the level of statistical significance set at p < 0.05. However, there were no significant differences when comparing Bolton values with Chinese and Indian anterior and overall ratios. The Bolton standards could be applied to Malaysian Chinese, Indians and Malay’s female. Subsequently, a specific standard should be used for the Malays orthodontic population.
first_indexed	2025-11-14T23:25:55Z
format	Article
id	oai:generic.eprints.org:3301
institution	Universiti Kebangasaan Malaysia
institution_category	Local University
language	English
last_indexed	2025-11-14T23:25:55Z
publishDate	2012
publisher	Universiti Kebangsaan Malaysia
recordtype	eprints
repository_type	Digital Repository
spelling	oai:generic.eprints.org:33012016-12-14T06:34:16Z http://journalarticle.ukm.my/3301/ Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton) Aida Nur Ashikin Abd. Rahman, Siti Adibah Othman, The objective of this study was to investigate the applicability of Bolton’s ratios in orthodontic population of Malaysian main ethnics; Malay, Chinese and Indians. Ninety convenient samples consisting of 30 pre-orthodontic study casts from each ethnic that fits the inclusion criteria were selected. The greatest mesiodistal widths of each tooth from six to six for overall ratio and three to three for anterior ratio were measured using a digital callipers linked to Hamilton Arch Tooth System software to the nearest 0.01mm. Means of the ratios were calculated using Bolton analysis. One sample t-test statistic analysis was carried out to compare the means with Bolton values of anterior ratio and overall ratio and one-way ANOVA was used to analyze comparison between ethnic groups of the anterior ratio and the overall ratio with the level of statistical significance set at p < 0.05. However, there were no significant differences when comparing Bolton values with Chinese and Indian anterior and overall ratios. The Bolton standards could be applied to Malaysian Chinese, Indians and Malay’s female. Subsequently, a specific standard should be used for the Malays orthodontic population. Universiti Kebangsaan Malaysia 2012-02 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/3301/1/17%2520Aida%2520Nur%2520Ashikin.pdf Aida Nur Ashikin Abd. Rahman, and Siti Adibah Othman, (2012) Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton). Sains Malaysiana, 41 (2). pp. 271-275. ISSN 0126-6039 http://www.ukm.my/jsm/
spellingShingle	Aida Nur Ashikin Abd. Rahman, Siti Adibah Othman, Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)
title	Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)
title_full	Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)
title_fullStr	Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)
title_full_unstemmed	Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)
title_short	Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)
title_sort	comparison of tooth size discrepancy of three main ethnics in malaysia with bolton ratio (perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di malaysia dengan nisbah bolton)
url	http://journalarticle.ukm.my/3301/ http://journalarticle.ukm.my/3301/ http://journalarticle.ukm.my/3301/1/17%2520Aida%2520Nur%2520Ashikin.pdf

Comparison of tooth size discrepancy of three main ethnics in Malaysia with Bolton ratio (Perbandingan diskrepansi saiz gigi di antara tiga etnik majoriti di Malaysia dengan Nisbah Bolton)

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